A hypoeutectoid alloy (carbon composition less than eutectoid). The first phase formed upon cooling from the austenite phase field is proeutectoid ferrite. Due to the lower solubility of carbon in ferrite, carbon is partitioned into the remaining austenite. At the eutectoid point the remaining carbon enriched austenite transforms to pearlite (a mixture of ferrite and cementite) which is the darker region of the micrograph. The proportion of pearlite is dependent upon the overall composition. The ferrite (light areas) is a good example of an allotriomorphic ferrite. This means that its shape does not reflect its internal crystalline symmetry as it nucleates on the austenite grain boundaries and hence follows the shape of the boundaries, the remaining austenite within the ferrite then transf

Image from ?The antiquarian and topographical cabinet: containing a series of elegant views [engraved by J. S. Storer and John Greig] of the most interesting objects of curiosity in Great Britain?, 003515912
Author: STORER, James Sargant.
Volume: 01
Page: 13
Year: 1817
Place: London
Publisher: published for the Proprietors by J. Murray, etc.
View this image on Flickr
View all the images from this book
Following the link above will take you to the British Library?s integrated catalogue. You will be able to download a PDF of the book this image is taken from, as well as view the pages up close with the 'itemViewer?. Click on the 'related items? to search for the electronic version of this work.
Open the page in the British Library?s itemViewer (page: 000013)
Download the PDF for this book

Commercial purity aluminium has atomised, mixed with 13 micron spherical alumina particles, ball milled, tumbled, cold compacted (20MPa) and then extruded (with the working direction vertical in the image). It has then been annealed at 630 degrees C. Vertical stringers of fine oxide particles are visible. Note the small yellow 'island' grain which has formed within one of the recrystallised grains and is likely to have nucleated on the adjacent reinforcement particle. Note also the boundary facets of some grains. These indicate a preferred habit plane and are probably coincidence site lattice (CSL) boundaries.

Postcard of the Wearmouth Bridge, Sunderland, c1930 (TWAM ref. DF.ATK/16/16/2). The postcard is unused.
This set celebrates the many postcards in our collections. The people, places and events they show can give us an insight into the past, documenting the landscape, the fashions, the way we lived. Some postcards are unused but others tell us something about the people who bought them, through the messages they wrote. They can give us a fascinating glimpse into people?s lives.
(Copyright) We're happy for you to share this digital image within the spirit of The Commons. Please cite 'Tyne & Wear Archives & Museums' when reusing. Certain restrictions on high quality reproductions and commercial use of the original physical version apply though; if you're unsure please email archives@twmuseums.org.uk.

Collection: Cornell University Collection of Political Americana, Cornell University Library
Repository: Susan H. Douglas Political Americana Collection, #2214 Rare & Manuscript Collections, Cornell University Library, Cornell University
Title: McKinley "Patriotism, Protection, & Prosperity" Ceramic Portrait Plate, ca. 1896
Political Party: Republican
Election Year: 1896
Date Made: ca. 1896
Measurement: Plate (diameter): x 9 in.; x 22.86 cm
Persistent URI: hdl.handle.net/1813.001/6125
There are no known U.S. copyright restrictions on this image. The digital file is owned by the Cornell University Library which is making it freely available with the request that, when possible, the Library be credited as its source.

Scot Peterson and Iain McLean discuss their new book, which explores the facts and opinions behind the legislating of same-sex marriage in the United Kingdom and the United States On 21st November 2013 Scot Peterson and Iain McLean launched their book, 'Legally Married: Love and Law in the UK and the US', which aims to give the facts needed to develop an informed judgment regarding same-sex marriage in the UK and the US, and to look at the claims made on both sides of the debate, and to place them in their historical context and contribute in a reasoned, unbiased way. This podcast is a recording of the lecture given at the launch of this book. Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Collection: A. D. White Architectural Photographs, Cornell University Library
Accession Number: 15/5/3090.00357
Title: Abbeville. Saint Vulfran Church
Photographer: Bisson Freres (French, 1841-1862)
Building Date: ca. 1488-ca. 1599
Photograph date: 1858
Location: Europe: France; Abbeville
Materials: albumen print
Image: 17 x 14.1732 in.; 43.18 x 36 cm
Style: Flamboyant Gothic
Provenance: Gift of Andrew Dickson White
Persistent URI: hdl.handle.net/1813.001/5sh8
There are no known copyright restrictions on this image. The digital file is owned by the Cornell University Library which is making it freely available with the request that, when possible, the Library be credited as its source.
We had some help with the geocoding from Web Services by Yahoo!

This course covers the basic models and solution techniques for problems of sequential decision making under uncertainty (stochastic control). We will consider optimal control of a dynamical system over both a finite and an infinite number of stages (finite and infinite horizon). We will also discuss some approximation methods for problems involving large state spaces. Applications of dynamic programming in a variety of fields will be covered in recitations. This course covers the basic models and solution techniques for problems of sequential decision making under uncertainty (stochastic control). We will consider optimal control of a dynamical system over both a finite and an infinite number of stages (finite and infinite horizon). We will also discuss some approximation methods for problems involving large state spaces. Applications of dynamic programming in a variety of fields will be covered in recitations.

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

This course covers the use of ecological and thermodynamic principles to examine interactions between humans and the natural environment. Topics include conservation and constitutive laws, box models, feedback, thermodynamic concepts, energy in natural and engineered systems, basic transport concepts, life cycle analysis and related economic methods.Topics such as renewable energy, sustainable agriculture, green buildings, and mitigation of climate change are illustrated with quantitative case studies. Case studies are team-oriented and may include numerical simulations and design exercises. Some programming experience is desirable but not a prerequisite. Instruction and practice in oral and written communication are provided. This course covers the use of ecological and thermodynamic principles to examine interactions between humans and the natural environment. Topics include conservation and constitutive laws, box models, feedback, thermodynamic concepts, energy in natural and engineered systems, basic transport concepts, life cycle analysis and related economic methods.Topics such as renewable energy, sustainable agriculture, green buildings, and mitigation of climate change are illustrated with quantitative case studies. Case studies are team-oriented and may include numerical simulations and design exercises. Some programming experience is desirable but not a prerequisite. Instruction and practice in oral and written communication are provided.

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

ebook version of Sunday reading. The strait gate and the broad way, being the second part of the valley of tears ebook version of Sunday reading. The strait gate and the broad way, being the second part of the valley of tears

This course provides a review of physical, chemical, ecological, and economic principles used to examine interactions between humans and the natural environment. Mass balance concepts are applied to ecology, chemical kinetics, hydrology, and transportation; energy balance concepts are applied to building design, ecology, and climate change; and economic and life cycle concepts are applied to resource evaluation and engineering design. Numerical models are used to integrate concepts and to assess environmental impacts of human activities. Problem sets involve development of MATLAB® models for particular engineering applications. Some experience with computer programming is helpful but not essential. This course provides a review of physical, chemical, ecological, and economic principles used to examine interactions between humans and the natural environment. Mass balance concepts are applied to ecology, chemical kinetics, hydrology, and transportation; energy balance concepts are applied to building design, ecology, and climate change; and economic and life cycle concepts are applied to resource evaluation and engineering design. Numerical models are used to integrate concepts and to assess environmental impacts of human activities. Problem sets involve development of MATLAB® models for particular engineering applications. Some experience with computer programming is helpful but not essential.

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

This class analyzes complex biological processes from the molecular, cellular, extracellular, and organ levels of hierarchy. Emphasis is placed on the basic biochemical and biophysical principles that govern these processes. Examples of processes to be studied include chemotaxis, the fixation of nitrogen into organic biological molecules, growth factor and hormone mediated signaling cascades, and signaling cascades leading to cell death in response to DNA damage. In each case, the availability of a resource, or the presence of a stimulus, results in some biochemical pathways being turned on while others are turned off. The course examines the dynamic aspects of these processes and details how biochemical mechanistic themes impinge on molecular/cellular/tissue/organ-level functions. Chemica This class analyzes complex biological processes from the molecular, cellular, extracellular, and organ levels of hierarchy. Emphasis is placed on the basic biochemical and biophysical principles that govern these processes. Examples of processes to be studied include chemotaxis, the fixation of nitrogen into organic biological molecules, growth factor and hormone mediated signaling cascades, and signaling cascades leading to cell death in response to DNA damage. In each case, the availability of a resource, or the presence of a stimulus, results in some biochemical pathways being turned on while others are turned off. The course examines the dynamic aspects of these processes and details how biochemical mechanistic themes impinge on molecular/cellular/tissue/organ-level functions. Chemica

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

Drama combines the literary arts of storytelling and poetry with the world of live performance. As a form of ritual as well as entertainment, drama has served to unite communities and challenge social norms, to vitalize and disturb its audiences. In order to understand this rich art form more fully, we will study and discuss a sampling of plays that exemplify different kinds of dramatic structure; class members will also participate in, attend, and review dramatic performances. Drama combines the literary arts of storytelling and poetry with the world of live performance. As a form of ritual as well as entertainment, drama has served to unite communities and challenge social norms, to vitalize and disturb its audiences. In order to understand this rich art form more fully, we will study and discuss a sampling of plays that exemplify different kinds of dramatic structure; class members will also participate in, attend, and review dramatic performances.

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

Image from ?Through the Gold-Fields of Alaska to Bering Straits ? With a map and 33 illustrations [including a portrait]?, 000926065
Author: DE WINDT, Harry.
Page: 393
Year: 1898
Place: London
Publisher: Chatto & Windus
View all the images from this book
Following the link above will take you to the British Library?s integrated catalogue. You will be able to download a PDF of the book this image is taken from, as well as view the pages up close with the 'itemViewer?. Click on the 'related items? to search for the electronic version of this work.

This unit is designed to enable you to recognise the importance of the function of accommodation provision in the hospitality industry and to gain an understanding of the variety of accommodation facilities that are provided by the different sectors of the hospitality industry. This unit should also help you to gain an understanding of the importance of maintaining acceptable standards of accommodation provision and of meeting client expectations. You should learn about the equipment, materials and procedures used to meet acceptable standards and how the provision of accommodation servicing is planned. After completion of this unit, you should be able to: 1. Demonstrate an understanding of the function and importance of accommodation provision within the different sectors of the hospitalit

Licensed to colleges in Scotland only Licensed to colleges in Scotland only
Except where expressly indicated otherwise on the face of these materials (i) copyright in these materials is owned by the Scottish Qualification Authority (SQA), and (ii) none of these materials may be Used without the express, prior, written consent of the Colleges Open Learning Exchange Group (COLEG) and SQA, except if and to the extent that such Use is permitted under COLEG's conditions of Contribution and Use of Learning Materials through COLEGâs Repository, for the purposes of which these materials are COLEG Materials. Except where expressly indicated otherwise on the face of these materials (i) copyright in these materials is owned by the Scottish Qualification Authority (SQA), and (ii) none of these materials may be Used without the express, prior, written consent of the Colleges Open Learning Exchange Group (COLEG) and SQA, except if and to the extent that such Use is permitted under COLEG's conditions of Contribution and Use of Learning Materials through COLEGâs Repository, for the purposes of which these materials are COLEG Materials.
http://content.resourceshare.ac.uk/xmlui/bitstream/handle/10949/17761/LicenceSQAMaterialsCOLEG.pdf?sequence=1 http://content.resourceshare.ac.uk/xmlui/bitstream/handle/10949/17761/LicenceSQAMaterialsCOLEG.pdf?sequence=1
SQA SQA